Modeling and Simulation of DIFG Unit with Stator Inter-Turn Fault

doi:10.16182/j.issn1004731x.joss.201801026

Abstract

Abstract: The mathematical model of doubly fed induction generator (DFIG) with stator inter-turn fault, which presents itself as standard form state space equation, is deduced and established, for the first time. The corresponding simulation model, i.e. Matlab S-function block is developed and embedded in a Matlab built-in routine simulating DFIG unit comprising wind turbine, converter, related mechanical/electrical control and DFIG. The simulation model of DFIG unit with stator inter-turn fault is established, which is a beneficial extension of Matlab simulation. The stability of DFIG unit under the healthy and faulty conditions is analyzed by using simulation. The results show that stator inter-turn fault leads to small vibration and deteriorates the stability of DFIG unit under the critical conditions of low and high wind speed.

Key words: DFIG (doubly fed induction generator), stator inter-turn fault, model, simulation, stability

CLC Number:

TM315

Xu Boqiang, Sun Liling, Du Wenjuan. Modeling and Simulation of DIFG Unit with Stator Inter-Turn Fault[J]. Journal of System Simulation, 2018, 30(1): 205-215.

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